5pcs Dry Film Photoresist Sheets For Diy Pcb 6"x 8"

GBP 3.09

  • Slovakia, Slovakia
  • Jan 29th
How to use it: 1: removing film, photosensitive film is sandwiched between two layers of film, tear up the side of the first little difficult to tear, try a few on the line 2: then foil, copper clad laminates little cleaning can paste level, try not to bubble 3: stickers, ready, irons a little heat, not too hot, fixed effect 4: printed circuit board film, it is recommended that the film can achieve the highest degree of fine, if not accuracy requirements with sulfuric acid paper print. 5: exposure, circuit diagram printed on the photo plate (Note: The dry film is negative, so anti-white print, which is contrary to our usual plate) for about 30 minutes with ordinary energy-saving lamps, exposure machine 1 minute on the line, the sun never tried, it should be about 15 minutes, the exposure process obviously, because the photosensitive film will change color, from light-colored dark blue exposure. You will easily see the circuit diagram is shown in the board. 6: developing, torn off another layer of protective film and put it into the developer (developer 1:100 watered, 10 grams against 1 liter of water), developing with a cotton swab and a little harder to wipe the board 7: etching Needless to say 8: after etching, stripping, mold release agent watered one sixty or 70, the board bulb within minutes These sheet is cut off from a roll Sent in Hard Tube or Envelope .
Condition New other (see details) :
A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second or a new, unused item with defects. See the seller’s listing for full details and description of any imperfections.
Seller Notes 100% Brand New, Each sheet is 6x8 inches or 15x20 cm., Thickness: 38?m. Cut from a roll

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